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HOT SLAG REGEPTACLE l Filed Nov. '7 1921 [bw/wmf, JAMES itl) Patented dune 19, 1923.

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EDWARD E. JAMES, 0F SAN JRANCISCO, CALIFORNIA.

l, HOT-SLAG RECEPTACLE.

I Application led November 7, 1921, Serial No. 513,491.

To all whom t may concern.'

Be it known that l, EDWARD E. citizen of the United States, and a resident of San Francisco, county of San Francisco, and State of California, have invented a new land useful Hot-Slag Receptacle, of which the following is a specification.

My invention relates to a portable receptacle for holding hot sla or the like sol that the same may be transigerred from one locality to another to enable the heat units of the slag to be used for cooking or heatin purposes in dwellings or other places.

n order to appreciate the advantages of my invention attention will be `first directed to the waste which occurs at smelting plants where the hot slag is practically thrown J AMES, a

l away, at least in so far as concerns the heating qualtities which might be derived therefrom. By the use of some suitable receptacle which could be used for collecting quantities of the slag, the same could be transferred to some location where the heat of the same could be used for some useful purpose, such for instance as cooking. According to my invention I propose to provide a portable receptacle which may be filled with the hot slag at the smelters and transferred to a dwelling or other place where the slag could be used in a so-called fireless cooker or other heating device.

The preferred embodiment of the receptacle is illustrated in the accompanying drawing in which Figure 1 is a plan view and Figure 2 a vertical section on the line 2 2 of Fi re 1.

f course it is understood that l would i propose using a number of these collection cles collected for exchange for receptacles, makin each one of a convenient size and shape so t at it may be individually handled with the utmost convenience, and further making each receptacle so that a number of them may be stored one upon the other on an automobile truck 'or other conveyance so that the receptacles with the hot slag contained therein may be distributed in very much the same manner as milk or other commodities are supplied to families. After the slag has been used and it is no longer it for cooking or heating purposes, it may be dumped from the receptacle and the receptaa filled one with the. empty ones returned to the filling station at the smelter and again distributed in the aforementioned manner.

@i course the manner ofutilizing or putlwise Xed to the body (5).

ting the ideainto practice is a secondary consideration in so far as my invention is concerned as there are other various ways in which the receptacle could be utilized. F or instance, it might be made suitable for transporting by an individual so that a person might use it as an open cooker for heating previously cooked food, or i'n various other ways. Y.

ln the referred constructiorrof this receptacle proposeto make the same round in shape with a. body (5) having a bottom (6) and side walls (7) with the top of the body closed by a basin shaped well (8) supported preferably in the bottom (6) by a web (9) and an annular flange (10). The basin (8), web (9) and iiange (10) may be made as an integral part ofthe body in the same casting, or the parts (8), (9) and (10) may be made separately and welded or other- In any event the space within the body (5) between the basin (8) should be hollow and filled with some heat insulating material. The peculiar construction of the basin (8) leaves a rounded well within the body (5) with the basin (8) actingA practically as a false bottom. Supported within the well made by the basin (8) is a second basin (11), the same being made separate 'from the receptacle and having an annular ledge (12) adapted to be supported by the flange (10) so that the basin (11) may be supported with a space (13) between it and the basin (8). The basin (l1) is adapted to be filled with the hot slag and to properly retain the heat in the device ll propose to use the space (13) as a vacuum space with the vacuum maintained by the packing (14) which also actsto steady the basin (11). The packing (14:) extendsup under the ledge (12) and over the flange (10) so as to make a tight fit, and as a further precaution' I propose to use a packing rin (15) overv the ledge (12) so that the cap 16) for the body will seal the receptacle. rihis cap (16) is of the same diameter and shape as the body (5) with the exception of. the notches (17) at spaced intervals around its periphery which leave linger openings so that the lcatches (18) may be pulled away from the rabbeted portions (19) of the side of the cap within the notches (17). This enables the cap to be held firmly on the body and at the same time confining the catch within the cap proper so that there are no outstanding parts to interfere with placing one recepl claim: v

tacle on another or arranging them side by A receptacle of the class described com- 25 side. The cap is made With a countersunk prising a hollow-body, a false bottom in top (20) so that the handle (21) may be out said body' comprisingr a basin shaped of the' way when one receptacle is placed on closure :for the top of the bottom,` another. For the purpose of insulation I a basin shaped slag container adapted further propose to arrange a vacuum chamto be supported above said false bot- 30 ber (22) in the cap with the false top (23) torn with avacuumspace therebetween, a thereoic bearing upon the packing ring (15) cap `for closing the top of the receptacle and and sealing the receptacle. V having a vacuum :spacega'dapt'ed Ato overlie When the basin (11) isto be illed thev cap the top of the` slag container When'the cap 16 of course is removed by .releasing the is in place on-the receptacle, saidcapihaving 35 catch (18) and the hot slagl is poured into notches Aat spaced intervals in its periphery the basin (11)'. When filled the cap (16) and rabbeted ledges in thevinside of said may be pnt on and held in place bythe notches, and catches carried adjacent the catches (18), the handle (21) being used to edge of the bodyin the top thereof adapted lift Vthc receptacle as previously mentioned. to engage said rabbeted ledges for holdinlgT 40 When the receptacle has been transported the cap in place, the rop surface of said or is to be used for cooking or heating purcap being 'countersunk and a handle in said posesiit may be placedin the ireless cooker .countersunk for carrying the receptacle. kthe or the like and the cap removed, which Will handle adapted to lie Within the countersunk free the heat of the slag and allow the cookbelow the surface of the cap when not' in use. 45

ing process to proceed. EDWARD JAMES. 

